Fig. 3. Quantitative analysis of selectivity of the proposed 3D photonic crystal-based biosensor. (a) The captured fluorescence images and (b) the measured relative fluorescence intensity during virus detection on 3D PC (red) and 2D glass surface (black) with different targets (H1N1, H5N1, H3N2, thrombin and the mixture of them) at the same concentration of 200 μg mL−1. The scale bar in the images is 20 μm.
